27830480 has 40 divisors (see below), whose sum is σ = 64963104. Its totient is φ = 11088000.

The previous prime is 27830423. The next prime is 27830489. The reversal of 27830480 is 8403872.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27830489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25955 + ... + 27005.

Almost surely, 2^27830480 is an apocalyptic number.

27830480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27830480 is an abundant number, since it is smaller than the sum of its proper divisors (37132624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27830480 is a wasteful number, since it uses less digits than its factorization.

27830480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 27830480 is about 5275.4601695018. The cubic root of 27830480 is about 303.0448437225.

The spelling of 27830480 in words is "twenty-seven million, eight hundred thirty thousand, four hundred eighty".